police say tools used to deface glass and a stencil were found at the scene. >>> president obama leaves for colorado in -- in an hour. >> reporter: president obama will call on congress to move forward with stricter gun laws. colorado's new laws include universal background checks for private gun sales and a 15- round limit on gun magazines. last year's deadly movie theater shooting sparked these new policies. victims from that shooting and the columbine high school meeting with meeting with president obama today. meanwhile, 16 sheriffs in colorado are holding their own news conference speaking out against gun control measures. president obama wants universal background checks, a magazine limit of ten rounds an an assault weapon ban but it appears there's dwindling support from washington lawmakers from all three proposals. >> i think most persons believe it makes absolute sense to check the criminal record of someone before they are allowed to purchase a gun. >> the senate was supposed to start debating this when they returned from a two-week recess. harry reid expects the debates to g